1
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

If x = 9 is the chord of contact of the hyperbola x2 $$-$$ y2 = 9, then the equation of the corresponding pair of tangent is

A
9x2 $$-$$ 8y2 + 18x $$-$$ 9 = 0
B
9x2 $$-$$ 8y2 $$-$$ 18x + 9 = 0
C
9x2 $$-$$ 8y2 $$-$$ 18x $$-$$ 9 = 0
D
9x2 $$-$$ 8y2 + 18x + 9 = 0
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